Cakpet-sweeper



UNITED STATES PATENT OFFICE.

JACOB EDSON, OF BOSTON, MASSACHUSETTS.

CARPET-SWEEPER.

Specification of Letters Patent No. 21,660, dated October 5, 18.58.

T0 atl whom t may concern:

Be it known that I, JACOB EDsoN, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Carpet-Sweepers, and that the following description, taken in connection with the accompanying draw ings hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth the nature and principles of my said improvements by which my invention may be distinguished from all others of a similar class, together with such parts as I claim and desire to have secured to me by Letters Patent.

The figures of the accompanying plate of drawings, represent my improvements. Figure 1 is a view of the underside of the machine with the lid Opened. Fig. 2 is a plan or top view of the same. Fig. 3 is an end View, and Fig. 4L is a transverse vertical sec tion taken in the plane of the line A, B.

My improvements are as follows: First, hanging a revolving brush at or near one of its journals in a bridle and attaching the opposite end of the said bridle at such a point on the case of the machine, between the center of the driving wheel and the other journal of the brush, as to make the machine self-adjusting, that is, so that the driving power' applied to the wheel shaw. under all circumstances a little more than equal the friction of the whole brush, whatever that fric-tion may be, thereby enabling the ma chine to sweep as lightly or as heavily as may be desired, as by this arrangement Vwhatever friction is received by the brush.

is a little more than equaled by the power applied to the driving wheel. Second, in order to effect the above result more successfully, the handle is placed, instead of in the center of the machine, nearer to the driving wheel, so that the power may be applied more directly thereto. Third, the machine is made of a tapering shape, the small end permitting the brush to be run into the cor ners of a room, and the large end being of suiiicient capacity to contain all the dirt that may be swept up. Fourth, combining with a tapering shaped dust receiver, a revolving brush with the bristles arranged spirally thereon, so as to convey the dirt into the larger end of the receptacle. Fifth, combining in one the door and dust receiver of the machine as will hereinafter be more fully explained. i

a a a, in the drawings represent the case or covering of the machine, of the shape shown in the drawings. This case is made larger at one end than at the other as shown in Figs. 1 and 2, so that the brush at the small end can readily enter the corners of a room, which cannot be done by the carpetsweepers heretofore invented. Z) b is the brush turning upon axles c and d one of the axles ci turning in one end of a bridle e e and the other end g of the bridle having its bearing at 7L, between the center i of the toothed driving wheel 70 and the axle c of the brush, so that the bridle is attached to the case a a at it and to the axle of the brush at d. m is a bearing wheel for the machine to run upon. The driving wheel engages with and turns the small wheel Z and consequently the brush b b as will be readily understood by inspection of the drawings.

By the above described arrangement it will be seen that any increase or diminution of the friction of the brush upon the carpet will produce a corresponding increase or diminution of the motive power, the machine adapting itself to light or heavy sweeping as may be desired.

The bristles of the brush b b Z) are arranged in spiral rows as shown in Fig. 1, thereby conveying the dirt swept up to the larger end of the dirt receptacle n u, where there is sufficient capacity to contain it. The dirt receptacle is attached to the case a a by hinges 0, o, 0, so as, also to constitute the door for removing the dirt collected, a lip or flange 79 serving to retain the dirt and prevent its falling out. The door and dirt-receiver is to be made of suflicient weight to keep in contact with the carpet when the machine is being used. The handle g, g is attached to the bridle e e not in its center, but at a point nearer the driving wheel, whereby as will be evident, the power is more directly applied to the driving wheel.

Having thus described my improvements, I shall state my claim as follows:

`What I claim as my invention and desire to have secured to me by Letters Patent, is-

l. The arrangement described of hanging the brush at or near one of its journals in specified.

3. Forming the entire machine of a taper-v ingshape as described, whereby the brush can work successfully in the corners of an apartment to be swept.

4. The combination of the revolving'brush having the bristles arranged spirally thereon, with the tapering shaped dirt-receiver,

so as to sweep and convey the dirt into thel larger end of the receptacle.

5. Combining in one the door for removing the dirt and the dirt-receiver, by constructing it as herein described.

' A JACOB EDSON.

Witnesses:

JOSEPH GAVETT, ALBERT BROWN. 

